I have a odd issue going on with my oil pressure. Cold start is is around 50 and once warmed up it is about 40 on the gauge. The weird thing is when I start to make WOT pull the pressure shoots off the charts. Rises with rpms straight up to 80+. Normal driving it stays were it should be and rises and falls like normal. Is this a sender issue possibly?

This is a heads/cam car, runs great, no weird noises, no oil leaks anywhere. I just pulled the oil cooler to check for blockage and it was good. I replaced the oil cooler lines while I was at it. Also replaced the oil pressure sender about 3 months ago (broke it during the heads/cam swap).

Anyway, just curious if anyone else has seen something like this.

Thanks